US cups (cup) to UK gallons (imp gal) Conversion
US cups
The cup is a unit of volume used primarily in cooking and baking, equal to exactly 236.5882365 mL in the US customary system. The metric cup (250 mL) is used in Australia, Canada, and South Africa. In culinary education, cup measurements form the practical basis of recipe standardisation, though the variation between US, metric, and UK cups is a common source of international recipe confusion.
UK gallons
The UK imperial gallon is a unit of volume equal to exactly 4.54609 litres, defined by the UK Weights and Measures Act 1985. It is approximately 20% larger than the US liquid gallon. The imperial gallon is still used in the United Kingdom, Ireland, and several Commonwealth countries for fuel sales, and in aviation for fuel loading in older aircraft. Four imperial quarts, eight imperial pints, or 160 imperial fluid ounces make one imperial gallon.
| US cups (cup) | UK gallons (imp gal) |
|---|---|
| 0.1 cup | 0.0052 imp gal |
| 1 cup | 0.052 imp gal |
| 2 cup | 0.1041 imp gal |
| 3 cup | 0.1561 imp gal |
| 5 cup | 0.2602 imp gal |
| 10 cup | 0.5204 imp gal |
| 20 cup | 1.0408 imp gal |
| 30 cup | 1.5613 imp gal |
| 50 cup | 2.6021 imp gal |
| 100 cup | 5.2042 imp gal |
| 1000 cup | 52.0421 imp gal |
Frequently Asked Questions (FAQ)
How many UK gallons are in 1 US cups?
1 US cups (cup) is exactly 0.052042 UK gallons (imp gal).
How do I convert US cups to UK gallons?
Multiply the value in US cups by 0.052042 to get the result in UK gallons. Or use the converter above — type any number and see the result instantly.